user
Task: Reverse engineer this algorithm.

Input: An array A of N integers A[1], A[2], …, A[N]
Output: A new sorted array B of N integers B[1], B[2], …, B[N]

For i = 2 to N
    j = i
    while j > 1 and A[j] < A[j-1]
        swap A[j] and A[j-1]
        j = j-1


assistant
The algorithm takes an array of N integers, A[1], A[2]…, A[N] and performs a bubble sort to create a new sorted array B[1], B[2]…, B[N]. Starting from index 2, it compares each element A[j] with its immediate predecessor A[j-1]. If A[j] is smaller than A[j-1], the two elements are swapped and j is decremented by one. This process is repeated until A[j] is no longer smaller than A[j-1] or j = 1.